Results 21 to 30 of about 285,864 (400)

The major role of Listeria monocytogenes folic acid metabolism during infection is the generation of N-formylmethionine

open access: yesmBio, 2023
Folic acid and its derivatives (folates) play central roles in one-carbon metabolism, necessary for the synthesis of purines, pyrimidines, and some amino acids.
Ying Feng   +2 more
doaj   +1 more source

The interaction of aflatoxins with purines and purine nucleosides [PDF]

open access: yesBiochemical Journal, 1967
From measurements of thermal hyperchromicity and the behaviour of an aflatoxin-DNA mixture on a Sephadex column it was concluded that aflatoxin B(1) is capable of weak binding to single-stranded DNA. The interactions of the aflatoxins (B(1), G(1) and G(2)) with nucleosides result in difference spectra and suggest that the purine bases and the amino ...
K. R. Rees, Janet I. Clifford
openaire   +3 more sources

Assessment of the temporal trend and daily profiles of the dietary purine intake among Chinese residents during 2014 to 2021

open access: yesFrontiers in Nutrition, 2023
The incidence of hyperuricemia is on the rise in China, primarily due to dietary habits. However, limited data exists regarding dietary purine intake in the country.
Shiwen Li   +5 more
doaj   +1 more source

Ferrocenoyl-adenines: substituent effects on regioselective acylation

open access: yesBeilstein Journal of Organic Chemistry, 2022
A series of N6-substituted adenine–ferrocene conjugates was prepared and the reaction mechanism underlying the synthesis was explored. The SN2-like reaction between ferrocenoyl chloride and adenine anions is a regioselective process in which the product ...
Mateja Toma   +5 more
doaj   +1 more source

The Intersection of Purine and Mitochondrial Metabolism in Cancer

open access: yesCells, 2021
Nucleotides are essential to cell growth and survival, providing cells with building blocks for DNA and RNA, energy carriers, and cofactors. Mitochondria have a critical role in the production of intracellular ATP and participate in the generation of ...
Humberto de vitto   +3 more
semanticscholar   +1 more source

Metabolomics and mass spectrometry imaging reveal channeled de novo purine synthesis in cells

open access: yesScience, 2020
Signs of a metabolon in action Eukaryotic cells have a heterogeneous cytoplasm, with compartments large and small, membrane bound or not. Enzymes that catalyze the de novo synthesis of purine nucleotides, which are needed in rapidly dividing cells, are ...
V. Pareek   +3 more
semanticscholar   +1 more source

Coagulase-negative staphylococci release a purine analog that inhibits Staphylococcus aureus virulence

open access: yesNature Communications, 2021
Coagulase-negative staphylococci and Staphylococcus aureus colonize similar niches in mammals and conceivably compete for space and nutrients. Here, we report that a coagulase-negative staphylococcus, Staphylococcus chromogenes ATCC43764, synthesizes and
Denny Chin   +6 more
semanticscholar   +1 more source

The purine nucleoside phosphorylase pnp-1 regulates epithelial cell resistance to infection in C. elegans

open access: yesbioRxiv, 2021
Intestinal epithelial cells are subject to attack by a diverse array of microbes, including intracellular as well as extracellular pathogens. While defense in epithelial cells can be triggered by pattern recognition receptor-mediated detection of microbe-
Eillen Tecle   +5 more
semanticscholar   +1 more source

Purine metabolism regulates DNA repair and therapy resistance in glioblastoma

open access: yesNature Communications, 2020
Intratumoral genomic heterogeneity in glioblastoma (GBM) is a barrier to overcoming therapy resistance. Treatments that are effective independent of genotype are urgently needed.
Weihua Zhou   +27 more
semanticscholar   +1 more source

Purine nucleoside phosphorylase deficiency

open access: yesAtlas of Inherited Metabolic Diseases, 2020
People with purine nucleoside phosphorylase deficiency have low numbers of immune system cells called T cells, which normally recognize and attack foreign invaders to prevent infection.
C. Staufner
semanticscholar   +1 more source

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